Centrifugal purifying apparatus for fluids.



K. 8; A. WARD.

BENTRIPUGAL PURIFYING APPARATUS FOR FLUIDS.

APPLICATION FILED 00T.17, 1912.

Fl 51W "W Patented; June 2, 1914.

7% g gr 5 W u UNITED STATES PATENT oFnicE.

KARL WARD AND ALBERT WARD, or STOCKHOLM, SWEDEN.

CENTRIFUG-AL PURIFYING APPARATUS FOR FLUIDS.

Specificaition of Letters Patent.

Application filed October 17, 1912. Serial No. 726,280.

Patented June 2, 191 1.

To all whom it may concern:

Be it known that we, KARL Winn and V ALBERT Winn, subjects of the King of Sweden, residing at Odengatan. 39, Stockholm, Sweden, have invented new and useful Improvements in Centrifugal Purifying Apparatus for Fluids, of which the following is a specification.

The present invention relates to centrifugal apparatus for purifying fluids from suspended particles in another state of aggregation as liquids from solid particles and gases from solid or liquid particles.

The invention will hereinafter be de scribed as an example applied to the purification of water from solid particles suspended therein.

An apparatus for this purpose is illustrated in .the accompanying drawing in a vertical axial section in Figure 1, while Fig. 2 shows. a detailed section of a modified form of the rotating member of the apparatus.

- The improved apparatus is characterized partly by the passages specified below, which are arranged in a rotating element 32, and partly by a stationary closed receptacle 33 surroundin the said element and filled with water. The passages just mentioned in the rotating element are partly passages 14 which serve as separating passages and open with their outer ends into said receptacle, and partly passages 18 which serve as supply passages and lead from a channel 19 in the rotating shaft outward, terminating in the separating passages 14, and partly passages 16 (discharge passages) passing from the inner ends or from the inner portion of the separatingpassages inward and terminating in a channel 20 of the shaft. The shaft portions containing the channels 19 and 20, extend from the rotating element 32 out of the receptacle 33 through stuffing boxes 19 and 20 respectively, or through other well known devices arranged in the walls of said receptacle. The power required for rotating the element 32 is supplied through either 0 the shaft portions by the aid of a belt-pulley or of other means. The inner ends of the supply passages 18 and of the discharge passages 16 are in communication each with one of the shaft channels 19 and 20, respectively. If required, the receptacle 33 is enlarged, so to speak, by means of a collecting tank 35 of any known construction, connected therewith.

The method of removing solid particles from water, in which they are contained, by means of our apparatus just described will be as follows: While keeping the element 32 rotating at a sufficient speed and on complete filling the receptacle 33 as well as the collecting tank 35, and alsoallthe passages of the rotating element with either pure water or the impure water to be purified, the latter is continuously introduced through the shaft channel 19 and the supply passages 18 into the separating passages 14. The centrifugal force endeavors to eject the solid particles as well as the water from the separating passages 14 into the surrounding receptacle 33. 'The water, however, cannot be ejected, because the receptacle 33 is already filled with water, which assumes a pressure due to the centrifugal force of the water contained in the passages of the rotating ele ment 32. The solid particles, the specific gravity of which must be greater than that of the water, and which are introduced into the separating passages 14, will, on the con ti ary, by means of their centrifugal force be ejected from said separating passages into the receptacle 33' Thus the water only, after being freed from the solid particles, will be delivered in a pure condition through the delivery passages 18 and the shaft channel 20.

The principal advantages of our improved apparatus compared with other apparatus for the same purpose are the following: In our improved apparatus the solid particles may without hinderance, z. e. without clogging .up any passages, pass out from the rotating element 32 into the receptacle 33 and settle therein, or in the underlying collecting tank 35, if used. The solid particles settled in the receptacle 33, or in the collecting tank 35, may, without disturbing the purifying process, be easily drawn off by means of any devices already known. Further, in our improved apparatus, another feature, causing a great reduction of the power. required for rotating the element 32, consists therein, that the pure water is delivered from the apparatus through an axial channel 20 and thus no energy due to peripheral speed of the said water is wasted. In order to attainv a still more perfect action in separatin the solid particles totally from the fiui in which they are contained, the modified arrangement of the separating passages 14: and t ischarge passages 16, shown in F g. 2, may be made use of viz: that they be givencornparativelylarge sectional areas, for the purposeiof making the speed of current in the direction of the axis of rotation in the saidpassages so small as to cause the influence of 5 the current of fluid on the solid particles to be even so much less than that of the centrifugal force on said particles.

Having now particularly described the nature of our invention and the manner of its operation; WllillLWG claim is:

In combination, a stationary receptacle capable of being closed and of containing a -fiuid under pressure, a member capable of being rotated therein and having one or more channels near its periphery opening substantially in radial directions outward directly into the receptacle, other conduits in said member leadin from an axial chan-' nel thereof into the a oresaid channels and being destined forthe introduction offiuid with suspended particles therethrough, and still other conduits in said member leading from the first named channels inward to an nXi 1 channel.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

KARL WAR ALBERT WARD. Witnesses:

BIRGER NORDFELDT. A. SIMON. 

